Washing sheet and preparation method thereof

Abstract

The invention discloses a washing sheet and a preparation method thereof, the washing sheet comprises the following raw materials: an adhesive, a surfactant, an enzyme preparation, an auxiliary agent, a plant extract, zinc diricinoleate and a cosolvent, the enzyme preparation comprises phosphodiesterase, and the auxiliary agent comprises an antibacterial preservative. The washing sheet has excellent antibacterial and odor-removing effects.

Description

Technical Field

[0001] The invention belongs to the technical field of daily chemical cleaning, and in particular relates to a cleaning tablet and a preparation method thereof. Background Art

[0002] Cleaning clothes is a daily routine for every household. Consumers are perhaps most concerned with stain removal and the maintenance effects of detergents on clothing, such as whitening, color protection, and softening. Of course, products that enhance the consumer experience by being skin-friendly, smelling pleasant, and reducing bacterial growth are also essential. However, existing detergents offer limited antibacterial and odor-removing properties, failing to meet consumers' increasingly demanding laundry requirements. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a detergent tablet and a preparation method thereof, which has excellent antibacterial and odor removal effects.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A washing tablet comprises the following raw materials: an adhesive, a surfactant, an enzyme preparation, an auxiliary agent, a plant extract, zinc ricinoleate and a cosolvent, wherein the enzyme preparation comprises phosphodiesterase and the auxiliary agent comprises an antibacterial preservative.

[0006] In some embodiments of the present invention, the detergent tablet comprises the following raw materials in parts by weight: binder: 10-50 parts; surfactant: 7-60 parts; enzyme preparation: 0.5-1 part; additive: 0.8-14 parts; plant extract: 0.01-5 parts; ricinoleic acid zinc ester: 0.1-5 parts; and cosolvent: 1-12 parts.

[0007] In some embodiments of the present invention, the detergent tablet comprises the following raw materials in parts by weight: binder: 35-50 parts; surfactant: 24-55 parts; enzyme preparation: 0.5-1 part; auxiliary agent: 6-14 parts; plant extract: 3-5 parts; zinc ricinoleate: 3-5 parts; and cosolvent: 5-12 parts.

[0008] In some embodiments of the present invention, the adhesive comprises at least one of polyvinyl acetate, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylate and polyvinyl alcohol cross-linked polymer.

[0009] In some embodiments of the present invention, the adhesive is one of polyvinyl alcohol PVA-205 and polyvinyl alcohol PVA-205.

[0010] In some embodiments of the present invention, the surfactant includes at least two of anionic surfactants, nonionic surfactants and zwitterionic surfactants.

[0011] In some embodiments of the present invention, the anionic surfactant includes at least one of sodium lauryl sulfate, sodium α-olefin sulfonate, fatty acid methyl ester sulfonate, sodium fatty alcohol polyoxyethylene ether sulfate, triethanolamine lauryl sulfate and sodium N-lauroyl sarcosine.

[0012] In some embodiments of the present invention, the nonionic surfactant includes at least one of alcohol-modified ethoxylates, oil-modified ethoxylates, alkyl glycosides, dehydrogenated glucoside, lauryl glucoside, fatty acid methyl ester ethoxylates, ammonium oxides and fatty acid amides.

[0013] In some embodiments of the present invention, the zwitterionic surfactant includes at least one of cocamidopropyl betaine, lauroyl propyl betaine, oleamidopropyl betaine, sodium cocoyl glutamate, sodium lauroyl aminoacid, potassium cocoyl glycinate, cocamidopropyl hydroxysulfobetaine, lauroyl hydroxysulfobetaine, cocamidopropyl ammonium oxide, cocamidopropyl betaine phosphate, cocamidopropyl hydroxysulfobetaine, cocamidopropyl hydroxysulfobetaine, and cocamidopropyl dimethylamine lactate.

[0014] In some embodiments of the present invention, the enzyme preparation further comprises at least one of amylase, protease, cellulase, lipase and pectinase.

[0015] In some embodiments of the present invention, the auxiliary agent further includes a chelating agent and an acid-base regulator.

[0016] In some embodiments of the present invention, the chelating agent includes at least one of glutamic acid diacetic acid, sodium citrate, ethylenediaminetetraacetic acid, methylglycine diacetic acid, sodium gluconate and polyaspartic acid.

[0017] In some embodiments of the present invention, the acid-base regulator includes at least one of citric acid, sodium carbonate, sodium bicarbonate, sodium hydroxide, acetic acid, tartaric acid and lactic acid.

[0018] In some embodiments of the present invention, the antibacterial preservative comprises triclosan.

[0019] In some embodiments of the present invention, the weight percentage of triclosan in the washing tablet is 0.1-6 parts.

[0020] In some embodiments of the present invention, the weight proportion of triclosan in the washing tablet is 3-5 parts.

[0021] In some embodiments of the present invention, the antibacterial preservative further comprises at least one of methylisothiazolinone, phenoxyethanol, dichlorobenzyl alcohol, methylparaben and propylparaben.

[0022] In some embodiments of the present invention, the plant extract includes at least one of a soapberry extract, a tea saponin extract, and a saponin extract.

[0023] In some embodiments of the present invention, the co-solvent includes propylene glycol and limonene.

[0024] In some embodiments of the present invention, the weight percentage of propylene glycol in the detergent tablet is 0.5-6 parts, and the weight percentage of limonene is 0.5-6 parts.

[0025] In some embodiments of the present invention, the weight percentage of propylene glycol in the detergent tablet is 3-5 parts, and the weight percentage of limonene is 2-5 parts.

[0026] In some embodiments of the present invention, the cosolvent includes at least one of polydimethylsiloxane, amino silicone oil, polyether-modified silicone, hydrophilic silicone oil, modified silicone oil, glycerol, pectin oil, isohexanediol, dibasic ester, and glycol ether derivatives.

[0027] A method for preparing the above-mentioned washing tablet comprises the following steps:

[0028] (1) mixing water and a binder and heating them, then adding a surfactant, an enzyme preparation, an adjuvant, a plant extract, zinc ricinoleate, a flavor and a cosolvent, stirring and emulsifying to prepare a slurry;

[0029] (2) drying the slurry prepared in step (1) and cutting and shaping it to obtain the washing sheet.

[0030] In some embodiments of the present invention, in step (1), the heating refers to heating to 85-95°C.

[0031] The beneficial effects of the present invention are:

[0032] (1) The detergent tablet of the present invention uses a combination of zinc ricinoleate and phosphodiesterase as a specific deodorizing ingredient, wherein zinc ricinoleate reacts with odor molecules such as ammonia, hydrogen sulfide, trimethylamine, formaldehyde, thiol, thioether, isovaleric acid, benzene and its derivatives in the odor to remove the odor, and phosphodiesterase destroys the protein structure of the odor source to achieve the effect of removing the odor. The two can work together to effectively remove the odor on the clothes, and can effectively inhibit the bacteria on the clothes when combined with the antibacterial preservative. Compared with other detergent products on the market, it not only has an antibacterial effect but also has an odor removal effect.

[0033] (2) When the antibacterial preservative of the present invention includes triclosan and the solubilizing agent includes propylene glycol and limonene, triclosan can destroy the cell membrane structure of microorganisms and cause the cell contents to leak; propylene glycol and limonene can act as solubilizing agents, and when the two hydroxyl groups with higher affinity for microbial cells are located at one end, propylene glycol can more easily penetrate the cell membrane into the cell body and kill bacteria, while limonene can disrupt the metabolic balance of microorganisms and reduce bacterial growth by interfering with the normal enzymatic reactions and energy metabolism in the bacteria. These three substances can synergistically enhance the antibacterial and antimicrobial effects of the washing tablet.

[0034] (3) The present invention is a solid detergent tablet product, which is a highly concentrated product with certain advantages in transportation and storage. Its volume is much smaller than that of liquid and powder products, and it has good sealing and strong stability.

[0035] (4) The detergent tablet of the present invention is easy to measure, convenient to use and easy to carry. DETAILED DESCRIPTION

[0036] The present invention will be further described below with reference to specific embodiments.

[0037] Examples 1-6:

[0038] A method for preparing a detergent tablet comprises the following steps:

[0039] (1) Add deionized water and adhesive according to the ratio and place them in a reactor, heat to 90°C, stir until completely dissolved, then add surfactant, enzyme preparation, additive, plant extract, zinc ricinoleate, essence, and solvent in turn, stir and mix until fully emulsified to obtain slurry.

[0040] (2) The uniformly emulsified slurry is dried and then cut into shapes to obtain a washing sheet.

[0041] The components and weights of the detergent tablets of Examples 1-6 are shown in Table 1;

[0042] Table 1: Components and weights of the detergent tablets of Examples 1-6

[0043]

[0044]

[0045]

[0046] Comparative Example 1:

[0047] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, except that zinc ricinoleate in the raw material is replaced by methyl methacrylate.

[0048] Comparative Example 2:

[0049] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, the only difference being that the raw materials do not contain zinc ricinoleate.

[0050] Comparative Example 3:

[0051] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, the only difference being that the raw materials do not contain triclosan.

[0052] Comparative Example 4:

[0053] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, the only difference being that the raw materials do not contain phosphodiesterase.

[0054] Comparative Example 5:

[0055] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, the only difference being that the raw materials do not contain propylene glycol.

[0056] Comparative Example 6:

[0057] A detergent tablet, the preparation method of which is exactly the same as that of Example 5, except that the raw materials do not contain limonene.

[0058] Test example:

[0059] 1. Antibacterial performance test.

[0060] The antibacterial rates of the detergent tablets of Examples 1-6 and Comparative Examples 1-6 were tested using 7.4 Test Method for Antibacterial or Antibacterial Effect of Fabric Detergents (Simulation Method) in QB / T 2738-2023. The test results are shown in Table 2.

[0061] 2. Odor removal performance test.

[0062] 1. Test Method

[0063] Before the experiment, prepare a pure cotton towel (74 cm × 33 cm). Use a Siemens drum washing machine. Place the cotton towel in the drum washing machine using the mixed wash mode, set the water temperature to 40°C, and wash for approximately 1 hour. Add 10 ± 0.5 g of standard laundry detergent and wash. Repeat three cycles until no odor remains. Air dry the towel and set aside. Run the drum washing machine through an empty cycle until no odor remains.

[0064] 2. Preparation of odor

[0065] Tobacco Odor: Light two cigarettes, clamp them with a clip, and place them in a confined space. Place the fabric to be tested in the confined space and wait until the cigarettes burn out. Toilet Odor: Take 5g of ammonia solution and spray it evenly on the fabric, spraying the same amount of odor source on each piece of fabric. Fishy Odor: Take 5g of trimethylamine solution and spray it evenly on the fabric, spraying the same amount of odor source on each piece of fabric. Hot Pot Odor: Take 10g of hot pot base, dilute it to 100g, and spray it evenly on the fabric, spraying the same amount of odor source on each piece of fabric. Let it dry naturally in a cool, dark place.

[0066] 3. Experimental Procedure

[0067] 10 g of each of the detergent tablets prepared in Examples 1-6 and Comparative Examples 1-6 was added to a drum washing machine, along with two odorous towels. The washing machine was set to the "Quick Wash" mode and the washing process was started. The washing was allowed to dry naturally and then evaluated.

[0068] 4. Evaluation of the product's odor removal effect

[0069] After washing, the odor removal effectiveness was evaluated by wet sniffing (before washing and drying) and dry sniffing (after washing and drying). At least 10 reviewers were selected to compare the blank test towels with the washed towels. Scores were given from 0 to 10, with the average score serving as the final judgment. Odor removal effectiveness on towels: 1-3 points: poor odor removal, 4-7 points: effective odor removal, and 8-10 points: complete odor removal.

[0070] Evaluation point 1 is to perform a wet smell before washing and drying, evaluation point 2 is to perform a dry smell after washing and drying, and evaluation point 3 is to wrap the fabric sprayed with the odor source with tin foil and leave it for 1 week to allow the odor to stay on the fabric longer and allow the odor to be more fully absorbed on the fabric, and then perform a wet smell before washing and drying.

[0071] The cotton towels were scored freshly washed and then dried. Evaluators rated the odor removal performance after washing and after drying. The final test result is the average of the scores.

[0072] The test results are shown in Table 2.

[0073] Table 2. Antibacterial and odor removal test results

[0074]

[0075] From the test results in Table 2, it can be seen that the detergent tablet of the present invention has excellent antibacterial properties and deodorizing effects, wherein the antibacterial rates against Escherichia coli, Staphylococcus aureus and Candida albicans can reach more than 80%, and the deodorizing test score can reach 8.0 or above.

[0076] By comparing the test data of Example 5, Comparative Example 3, Comparative Example 5 and Comparative Example 6, it can be seen that the antibacterial activity of Comparative Example 3 will be greatly reduced by removing triclosan; the antibacterial activity will be greatly reduced by removing propylene glycol in Comparative Example 5 and removing limonene in Comparative Example 6.

[0077] By comparing the test data of Example 5, Comparative Example 1, Comparative Example 2 and Comparative Example 4, it can be seen that: in Comparative Example 1, octyl ricinoleate is replaced with methyl methacrylate, and its odor removal effect is reduced; in Comparative Example 2, octyl ricinoleate is removed, and in Comparative Example 4, phosphodiesterase is removed, which leads to a significant reduction in the odor removal effect.

[0078] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A washing tablet, characterized in that: The invention comprises the following raw materials: adhesive, surfactant, enzyme preparation, auxiliary agent, plant extract, ricinoleic acid zinc ester and auxiliary solvent, wherein the enzyme preparation comprises phosphodiesterase, and the auxiliary agent comprises antibacterial preservative.

2. A washing tablet according to claim 1, characterized in that: The washing tablet comprises the following raw materials in parts by weight: binder: 10-50 parts; surfactant: 7-60 parts; Enzyme preparation: 0.1-5 parts; Additives: 0.8-14 parts; Plant extract: 0.01-5 parts; Zinc ricinoleate: 0.1-5 parts; Cosolvent: 1-12 parts.

3. A washing tablet according to claim 1, characterized in that: The adhesive comprises at least one of polyvinyl acetate, polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylate and polyvinyl alcohol cross-linked polymer.

4. A washing tablet according to claim 1, characterized in that: The surfactant includes at least two of anionic surfactants, nonionic surfactants and zwitterionic surfactants.

5. A washing tablet according to claim 1, characterized in that: The auxiliary agent also includes a chelating agent and an acid-base regulator.

6. A washing tablet according to claim 5, characterized in that: The chelating agent includes at least one of glutamic acid diacetic acid, sodium citrate, ethylenediaminetetraacetic acid, methylglycine diacetic acid, sodium gluconate and polyaspartic acid.

7. A washing tablet according to claim 5, characterized in that: The acid-base regulator includes at least one of citric acid, sodium carbonate, sodium bicarbonate, sodium hydroxide, acetic acid, tartaric acid and lactic acid.

8. A washing tablet according to claim 1, characterized in that: The antibacterial preservative includes triclosan.

9. A washing tablet according to claim 1, characterized in that: The cosolvents include propylene glycol and limonene.

10. A method for preparing the detergent tablet according to any one of claims 1 to 9, characterized in that: The following steps are involved: (1) mixing water and a binder and heating them, then adding a surfactant, an enzyme preparation, an adjuvant, a plant extract, zinc ricinoleate, a flavor and a cosolvent, stirring and emulsifying to prepare a slurry; (2) drying the slurry prepared in step (1) and cutting and shaping it to obtain the washing sheet.

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